%I A051917
%S A051917 1,3,2,15,12,9,11,10,6,8,7,5,14,13,4,170,160,109,107,131,139,116,115,
%T A051917 228,234,92,89,73,77,220,209,85,214,80,219,199,179,203,184,66,226,70,
%U A051917 236,156,247,149,248,255,182,189,240,120,164,174,127,142,100,98,134
%N A051917 Inverse of n under Nim (or Conway) multiplication.
%C A051917 The Conway product makes N into a field of characteristic 2. This is 
               the inverse function for that field
%D A051917 E. R. Berlekamp, J. H. Conway and R. K. Guy, ``Winning Ways'', p. 443
%D A051917 J. H. Conway, ``On Numbers and Games'', chapter 6
%H A051917 David A. Madore, <a href="http://www.eleves.ens.fr:8080/home/madore/math/
               games.ps.gz">Notes on game theory</a>
%H A051917 <a href="Sindx_Ni.html#Nimmult">Index entries for sequences related to 
               Nim-multiplication</a>
%e A051917 a(4)=15 because the Conway product of 4 and 15 is 1
%Y A051917 Sequence in context: A072346 A103236 A141235 this_sequence A133932 A111999 
               A126323
%Y A051917 Adjacent sequences: A051914 A051915 A051916 this_sequence A051918 A051919 
               A051920
%K A051917 easy,nice,nonn
%O A051917 1,2
%A A051917 David A. Madore (david.madore(AT)ens.fr), Dec 18 1999
%E A051917 More terms from John W. Layman (layman(AT)math.vt.edu), Mar 01 2001